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No. 624,996. Patented May I6, |899.

H. THURSTON.

A uTToN. (Application led Fa`b. 23, 189B.) (No Model.)

x Yams co.. Pnngmrno.. WASHING-mu. n. c.

UNITED STATES PATENT OFFICE. f

HORACE THURSTON, OF PROVIDENCE, RHODE ISLAND, ASSIGNOR OF THREE-FOUR'IHSTO CHARLES E. BROWN, ALVAN S. BROWN, AND CHARLES H. SCHOTT, OFNEIV'YORK, N. Y.

BUTTON.

SPECIFICATION forming part of Letters Patent N0. 624,996, dated May 16,1899.

Application led February 23, 1898. Serial No. 671,284. (No model.)

' the two sections of the button being secured together and to thegarment by turning the point of the tack after the parts are united.

The object of my invention is to provide a simple, durable, andefficient closed-top tackbutton, and one which can be made with a few'parts and at little expense.

To these ends my invention consists in the novel arrangement andcombination of parts hereinafter described and claimed.

In the accompanying drawings, Figure l represents aside elevation,partly in section,

I Y chamber at any point across the same.

of one forrn of button embodying my invention, the button being shown inthis figure as secured in place upon the garment or carrier thereof.Fig. 2 is a detail bottom view of the button-head. Fig. 3 is a detailplan view of the tack-section.,

The button head A of my invention is formed from a single disk of sheetmetal and is in the form of a closed-top double-walled button-head inwhich is provided what I term a central tack-point-receiving chamber, asindicated at The lower Wall of the buttonhead is indicated at f, while grepresents the upper wallor top of button-head. The button-head isprovided with a hollow tack-receiving shank c, which is closed upon allsides and is formed integral therewith and which is of less extent indiameter at its narrowest portion than the diameter of thetack-pointreceiving chamber so as to prevent the parts from beingseparated when the point of the tack is turned in the chamber. By thediameter of the tack-point-receiving chamberI mean the size of thetack-point-receiving It will likewise be observed that when the point ofthe tack is turned within the head it coutacts with the upper and lowerwalls fg of the head and prevents a movement of the parts with relationto each other. From the shank a extends an outwardly projectingbearing-flange b, which is formed integral with the hollow shank and thebutton-head.

B constitutes the tack-section or back of the button, and this sectioncomprises the hack proper, c,f rom which projects the pointed tackproper, d. This tack d is provided with abearing-shoulder e, againstwhich the inner wall of the hollow shank a of the button-head is adaptedto bear when the parts are connected as represented in Fig. l.

C represents the cloth of the garment, through which the tack d isprojected to secure the parts together and the button in position uponthe garment.

The manner of uniting the sections of the button will, it. is thought,be obvious. The tack is projected through the cloth C of the garment towhich the button is 4to be secured, and a tack d thereof is projectedthrough the tack-receiving opening in the hollow shank a.

Pressure is exerted upon the head A, which results in the point of thetack being bent over in the tack-point-receiv'ing chamber atsubstantially right angles to the passage in the shank to prevent thehead and tack-sec tion from .being disconnected, and thus secure thebutton to the garment, as represented inFig. l. The shoulder e on thetack limits the downward movement of the button-head with relation tothe tack and provides a space between the bearing-flange b and the backof the tack-section. By these means the button is rigidly maintained inplace on the fabric, the fabric being clamped between the bearing-flangeb and the buttonback or tack-section B. All movements of the button inthe direction of its shank are prevented by these means. 4What I mean byclosed-top button is one wherein the tackreceiving opening does notextend entirely through the button-head.

It will be observed that by my invention I am enabled to provide aclosed-top tack-button which is made of two pieces, the smallestpossible number of pieces with which a tackbutton can be made. Itwilllikewise be seen that by making the back in a single piece and thehead, shank, and liange in a single piece I dispense with all joints inthe individual parts, thereby not only increasing the strength of thebutton, but at the same time greatly reducing the cost of manufacture.Thus, for instance, the head and back of the button can be produced atasingle operation or handling, parts are dispensed with, and the time andexpense of setting up and assembling the separate pieces which go tomake up the individual sections of the button are saved. It will also beobserved that by providing a closed top for the buttonhead l may therebyproduce a highly-ornamented button or one wherein suitable inscriptionsor advertisements may be produced upon the button-head.

- While I have shown and described the tack-section as being providedwith a bearing-shoulder, it is obvious that such shoulder may bedispensed with.

Having described my invention, what I claim, and desire to secure byLetters Patent, 1sa

l. A separable two-piece button comprising a closed-top double-walledhead struck up from a single disk of sheet metal and having a tack-point-receiving chamber in the center thereof, ahollow tack-receiving shankclosed upon all sides and made integral with said head and having itsnarrowest portion of less extent in diameter than the diameter of thecentral tack-point-receivin g chamber, a tacksection provided with apointed tack which is adapted to bear against the upper wall or top g ofthe button-head when the parts are united and to be turned therebywithin the tack-point-receiving chamber .in the head at substantiallyright angles to the passage in the hollow shank to unite the button-headand'tack-section and to contact with the upper and lower walls of saidhead to prevent a movement of the parts with relation to each other andthus secure the button to the garment, and a bearing-flangeformedintegral with said shank and adapted to bear upon the material towhich the button is Secured.

2. A separable button comprising a closedtop double-walled head struckup from a single disk of sheet metal and having a tackpoint-receivingchamber in the center thereof, a hollow tack-receiving shank formedintegral with said head and having its narrowest portion of less extentin diameter than the central tack-point-receiving chamber, anoutwardly-projecting bearing-flange formed integral with said shank anda tack-section, the pointed tack of which is adapted to bear against theupper Wall or top g of the buttonhead and to be turned thereby withinthe tack-point-receiving chamber in the head at substantially rightangles tothe passage in the hollow shank to unite the button-head andtack-section and to contact with the upper and lower walls of said headto prevent a movement of the parts with relation to each other and thussecure the button to the garment, said tack-section being provided witha bearing-shoulder against which the hollow shank is adapted to bearwhen the tack is within the shank and the parts united, whereby a spaceis provided between the back of the tack and the bearing-flange of thebuttonhead and a rigid connection between the parts is formed.

HORACE THURSTON. Witnesses:

HOWARD E. -BARLow, BENJ. ARNOLD.

